What is poly chloroethene?
Poly(chloroethene), usually known as polyvinyl chloride or just PVC, is the most versatile plastic and, after poly(ethene), the most widely used. The variety of uses comes from its ability to be formulated with different additives and with different molecular masses, giving plastics that range from rigid to pliable.
What type of polymer is poly chloroethene GCSE?
The polymer, poly(chloroethene) is also known as poly(vinyl chloride), or PVC. The diagram shows the structure of propene. Deduce the structure of poly(propene), and use this to show an equation for the polymerisation of propene.
What is the equation for the formation of poly chloroethene?
The old name for poly(chloroethene) was polyvinyl chloride, hence the use of the commercial name PVC, and is made from polymerising the monomer chloroethene, CH2=CHCl, (old name vinyl chloride).
What is a monomer GCSE?
A monomer is a small reactive molecule that can be joined with other monomers to form long chains. These long chain molecules can be made up from tens of thousands of monomers joined together.
What are the properties of poly Chloroethene?
Uses of polymers
| Polymer | Properties | Uses |
|---|---|---|
| Poly(chloroethene) ‘PVC’ | Tough, electrical insulator, can be made hard or flexible | Insulation for electrical wires, windows, gutters, pipes |
| Poly(tetrafluoroethene) ‘PFTE’ | Slippery, chemically unreactive | Non-stick coatings for pans, containers for laboratory substances |
What does N mean in polymers?
In condensation polymers (see examples below), the repeat unit contains fewer atoms than the monomer or monomers from which it is formed. The subscript “n” denotes the degree of polymerisation, that is, the number of units linked together.
What is the formula of ethene?
C2H4
Ethylene/Formula
Ethylene, or ethene, is an unsaturated hydrocarbon. It is a colorless gas. Its chemical formula is C2H4 where there is a double bond between the carbons.
What is the difference between monomer and polymer?
Monomers are small molecules, mostly organic, that can join with other similar molecules to form very large molecules, or polymers. Polymers are a class of synthetic substances composed of multiples of simpler units called monomers. Polymers are chains with an unspecified number of monomeric units.
What is a monomer A level?
Monomers are individual molecules that make up a polymer. Polymers are long chains that are composed of many individual monomers that have been bonded together in a repeating pattern. ​Condensation Reactions occurs when two molecules combine to form a more complex molecule with the removal of water.
What are common polymers?
The eight most common types of synthetic organic polymers, which are commonly found in households are:
- Low-density polyethylene (LDPE)
- High-density polyethylene (HDPE)
- Polypropylene (PP)
- Polyvinyl chloride (PVC)
- Polystyrene (PS)
- Nylon, nylon 6, nylon 6,6.
- Teflon (Polytetrafluoroethylene)
- Thermoplastic polyurethanes (TPU)
What kind of polymer is chloroethene made of?
Poly (chloroethene) is made by polymerising chloroethene. Equations use repeating units to model addition polymerisation reactions. The letter n stands for a large number. Polymers are unreactive, so they are suitable for storing food and chemicals safely. Unfortunately, this also makes them difficult to dispose.
What is the chemistry of the polymerisation of ethene?
The Chemistry of the Polymerisation of Ethene. The picture below shows the polymerisation of ethene. will polymerise (make long chains of atoms ) to form poly ( ethene ). Note that there are no double bonds in the polymer. Poly ( ethene) is an alkane. It is a saturated hydrocarbon. ethene can make either HD PE or L D PE.
What is the name of the monomer that would make the polymer poly?
What is the name of the monomer that would make the polymer poly (phenylethene)? Which of the following does not contain a C=C double bond? Which properties of poly (ethene) makes it a suitable material for making plastic bags and polytunnels? Which polymer is used to coat metal frying pans to make them ‘non-stick’?
How are repeat units written in a polymer?
A polymer is often written in the form shown below. The brackets contain the repeat unit. The small n means that there are many of them. many times to make up the long chain of the polymer. Below are some examples of the repeat units of polymers. See the properties and uses of polymers.